JPS5876389A - Releasing/recovering method and device for life boat - Google Patents

Abstract

PURPOSE:To release or recover a fully enclosed type life boat from a mother ship safely, quickly, and surely by providing one or more specific devices on the deck of the mother ship. CONSTITUTION:One of the specific devices is constituted with an auto-releaser 60 installed on a deck D and operating under a water pressure and a lashing wire fastening a life boat C through the auto-releaser 60. For instance of free surfacing actions, if a mother ship S sinks with no time for the crew to move in and fall freely and when the rear deck D reaches a predetermined depth from a water surface w, the auto-releaser 60 fixed on the rear deck D is waggled by a water pressure to release the lashing wire 62, and the life boat C surfaces on the water surface W. Then, the life boat C having surfaced on the water surface W starts its self-contained engine (not shown in the figure) and escapes from the mother ship S.

Description

Detailed Description of the Invention (Purpose of the Invention) The present invention is intended to provide a completely sealed system for safely evacuating outside the ship in the event of a fire or sinking due to a ship being abandoned, and for rescuing the lives of the crew members of a shipwrecked ship. This document relates to (4) the lifeboat release method and device for safely, quickly, and reliably releasing and retrieving type lifeboats.

(Prior art) In order to release a conventional fully enclosed lifeboat from a ship such as a shipwreck, the lifeboat is simply released from the slide, which is not safe. Since the lifeboat was recovered via a large frame with a fulcrum, if the frame exceeded the fulcrum, the center of gravity would shift and the lifeboat would suddenly pivot onto the deck and land, which was extremely dangerous.

(Structure of the Invention) In view of the above-mentioned problems, the present invention has been developed by converting a wheeled girder trackway that blinds the rearwardly inclined part of the stern deck into a cradle trackway that is transferred in the fore-and-aft direction, with a gate at the top. A removable cradle with a body attached to the rotating body of the shape is installed, and the wire rope of the winch installed on the base deck of the wheeled girder (5) is also placed on the base deck of the wheeled girder (5). A sheave pivoted to the installed tower and multiple sheaves pivoted to the cradle are suspended from the portal at the top of the cradle, and placed on top of the lifeboat placed on the cradle trackway. The above-mentioned lifeboat, which is removably connected via a floating block,
The cradle, wheeled garter, trackway for the cradle, trackway for the wheeled garter, and winch brake can be engaged and disengaged from inside the boat or from the deck. The invention will be explained with reference to figures of embodiments.

In Figure 111 and Li2, the lifeboat release and recovery device 1 (hereinafter referred to as this device) consists of two wheeled girders installed parallel to each other on the rear deck of the ship S. H# part D' after trackway 2 and 2 on the rear deck
The lower end 7 of the inclination fi3 is fixed to the ship (6) S by IIgI5 and m6 provided in the HI# part 3 and the horizontal part 4, respectively, which are inclined rearwards along the line, and the lower end 7 of the inclination fi3 is fixed to the ship (6) S by a bracket 8.

The rollers 9, 9 are movable by being loosely fitted into the inclined parts 3, 3 of the trackways 2, 2 for wheeled girders.
For the wheeled girder, rollers 13 and 13 are respectively pivoted on the lower side of the rear of horizontal girders 12 and 12, which support the lower side of the front side at the upper ends of the left and right MJlGs, which are pivoted on the lower ends of the rollers 13 and 10, respectively. It is loosely fitted into the horizontal part 4 of the trackway 2 and can be moved freely.
A wheeled girder 16 is formed by fixing the cradle trackways 15 having the following.

The IIIjg Al struts of the portal frame 20 are connected by -19 to the upper ends of the bodies 18.18, which have rolling rollers 17.17 that are loosely fitted into each of the cradle state trackways 15.15 and pivoted to the lower ends of the front and back. 21 and 21 are freely rotatable back and forth, an upper beam 22 and a lower beam 23 are installed at the upper and lower parts of this portal frame 2G, respectively, and a sheave is attached to the head 24 fixed to the center of the upper beam 22. 25. Wear 25 with pongee (7) to form the cradle 26.

Above, 81 behind the girder 16 (right side in the t!g1 diagram)
A tower 27 was established on the rear deck below the tower 27, and a winch 30 with a centrifugal brake having a drum 28 and a motor 29 was installed on the upper end of the tower 27. The sheave 32 is pivotally attached to the bearing 33. Guard 1 when lifeboat Ct6 floats above/below the portal frame 20! A locking groove 35 in which a floating block 34, which will be described later, is locked is provided at the front of the head N24.

A wire rope 36 whose base end is tied to the drum 28 of the MU winch 30 is looped around the sheave 32 on the tower 27, and is further pivoted to a support 37 fixed to the center of the lower beam 23 of the cradle 26. 2 sets of sheaves 3g,
38 and 39 and 39 are turned to suspend the floating block 34 from the tip.

This floating block 34 is located at the top.
A sheave 43 is pivoted inside a casing 42 provided with a support 40 that engages with a locking groove 35 of the head 24 and a ring 41 that locks on a boat hook F of a lifeboat (8) at the bottom.

A lock lever 46 of a main lock 45 operated by a hydraulic cylinder 44 is provided on the side surface of the inclined part 3 of the wheeled girder trackway 2 on the main lock par 47 fixedly attached to the side 10, and the lock lever 46 is freely mounted on the main lock par 47 fixed to the side 10. A lock lever 50 of a body lock 49 operated by a hydraulic cylinder 48 provided on the side surface of the part 4 can be moved toward and away from the front surface of the body 18 of the cradle 26, and a boat lock 5 provided on the front surface of the body 18
The boat locking fitting P of No. 2 can be freely engaged and detached from a boat lock lever 53 at the rear end of the lifeboat C.

A sheave 55.56 has a remote control wire 54 for removing the brake, whose base end is tied to the drum 28 of the winch 30 with a centrifugal force brake, and is pivoted on the rear deck.
Then, the sheave 57 that is pivoted to the top of the tower 27 is hung and turned, and the sheave 63 that is pivoted to the top of the portal frame 20 is hung and hung by tying the handle 58 to the tip (9).

Slide plate B on both sides of the center of the fully enclosed life saving IIC
, the sphere on which B rests 59.59. ... are fixed in large numbers 11 on the upper surface of the cradle trackway 15.15.

A roller 64 has a lashing wire 62 with an auto releaser 60, 60 fixed on the rear deck and automatically released by water pressure suspended between the rollers 61 and 61 and pivoted on a cradle trackway 15.15. , 65
The hooks are attached to the front and back of the upper part of the life-saving HkC.

In the figure, 66 is a guide roller provided on the side surface of the body 18, 67 is a platform, 68 is a rudder, L is a limit valve, and W is a water surface.

(Actions of the Invention) The actions of the present invention will be described by listing examples for each action using figures.

(1) Free levitation N In Figures 3 and 4, after the crew has been transferred, (10) the ship S sinks without any chance of free fall, and the aft deck reaches a predetermined depth below the water surface W. The water pressure activates the automatic releaser 60 fixed to the rear deck D-, and the lashing wire 62 is released, and the lifeboat C
It floats above IliW. At this time, the upper surface of the diameter part of the lifeboat C comes into contact with the guard 11 provided on the lower side of the column 21 of the portal frame 20 of the cradle 26, and pushes the column 21, 21 of the circular frame 20 upward as shown by the arrow H. , the portal frame 20 is brought into a substantially vertical position. Rescue @C, which surfaced on the water surface W, starts its own engine (as shown) and escapes from the ship S.

(2) Kanayama Fall Launch In Figures 5 to 7, when the slip hook of the lashing wire 62 (as shown in the diagram) is manually released, the floating block 34 is lowered by the hydraulic cylinder 77 and hooked to the boat of the lifeboat C. It is locked with F. Next, the crew members are transferred to the lifeboat C, and the main lock 45 is opened by operating the hydraulic switching pulp lever (path shown) and the hydraulic cylinder (11) cylinder 44 inside the boat.
When the brake 31 of the winch with brake 30 is released by pulling it from inside the boat via the pull string of the remote control wire 54, the wire rope 36 of the winch 30 extends freely even when the cradle 26 moves forward.

That is, when the pulp lever inside the boat is set to the main lock release position, the direction A pulp (path shown) of the pump unit 69 placed on the deck is switched, and the main lock 45 is switched.
Because the hydraulic pressure in the hydraulic cylinder 44 is released to the pump unit, lifeboat C and cradle 26 are separated by 1 m! The wheeled girder 16 begins to descend under its own weight, and the axle girder 1
The main lock par 47 attached to 6 is the lock lever 46
9R of trackway 2 for girder with car flash
The roller 9 in the inclined part 3 begins to roll diagonally downward in the inclined part 3, and at the same time the roller 1 at the rear of the wheeled girder 16
3 rolls forward in the horizontal s4 of the wheeled girder trackway 2, and the wheeled girder 16 moves onto the wheeled girder trackway 2 with the life saving MkC and the dollar 26 placed thereon. 1Iif move while moving and roll the front roller 9
When it reaches the lower end 7 of the inclined part 3, it stops.

The lifeboat C has a large number of spheres 59 arranged on the cradle trackway 15.15 on the upper surface of the wheeled girder 16.
Since it is supported by H, when the drawstring inside the boat is pulled, the brake 31 of the brake winch 30 is released, and the wire rope 36 is loosened to take the tension on the floating block 34. When the hydraulic pressure switching valve lever inside the boat is placed in the boat hook lock release position and the manual pump (both shown in the figure) inside the boat is operated, the boat hook F is locked and released. Furthermore, hydraulic TI inside the boat! When the J# valve lever is placed in the floating block lock release position and the manual pump inside the boat is activated, the floating block 34
moves upward, floating block 34 and lifesaving l#
C is developed into dead money.

(13) Hydraulic switching valve inside the boat Leno! - is placed in the boat lock open position and the manual pump inside the boat is activated, the boat lock 52 between the lifeboat C and the body 18 of the cradle 26 is unlocked. However, since the body lock 49 has not been released, the cradle 26 is fixed to the rear part of the wheeled garter 16, and the lifeboat C is attached to the sphere 59.59.
・・・・It slides on the top, falls freely onto the water surface W behind the ship S, enters the water, and rises to the surface.

Next, start the engine of lifeboat C (as shown) and
Escape from S.

(3) In Figure 8 to 1!10 of gravity drop launch, the lashing wire 62
When the slip hook (not shown) is manually released, the floating block 34 is lowered by the hydraulic cylinder 77 and is locked with the boat hook F of the lifesaving IRC.

Next, when the crew members are transferred to lifeboat C and the hydraulic switching pulp lever (shown in the diagram) is set to the main lock release position, the direction of the pump unit 69 placed on the deck (14) @ incense valve (r !!: i Waterway) is switched and the hydraulic cylinder 4 of the main lock 45
In order for the hydraulic oil in 4 to flow into the pump unit, the main lock 45 is opened, and the remote control wire 54 from inside the boat is pulled through the pull string to release the brake 3 of the winch with brake 30! When the winch 30 is removed, the wire rope 36 of the winch 30 loosens due to the weight of the cradle 26 and lifeboat CJL & lifeboat garter 16. The main lock par 47 attached to the wheeled girder 16 pushes down the lock lever 4G, and the roller 9 at the inclination N3F'3 of the wheeled girder trackway 2 begins to roll diagonally downward within the inclination M3. At the same time, the roller 13 at the rear of the wheeled girder 16 moves forward in the horizontal s4 of the trackway 2 for wheeled girders, and the wheeled girder 16 moves forward on the wheeled girder 16 with the lifeboat C and cradle 26 placed thereon. - The trackway 2 moves while tilting forward, and stops when the front roller 9 reaches the lower end 7 of the inclined part 3.

(15) Lifeboat C has cradle trackway 1 on the top of wheeled girder 16! I, a large number of spheres 59 arranged on Is
Since the lifeboat C is supported by slide plates B and B on both sides of the lifeboat C, when the drawstring inside the boat is pulled, the brake 31 of the winch with brake 30 is released, and the wire rope 36 is loosened to release the floating block 34. remove the tension.

When the hydraulic switching valve lever of the li yen is placed in the boat lock open position and the manual pump inside the boat is activated, the life-saving IIC is activated.
The port lock 52 between the body 18 of the cradle 26 is unlocked, and the rescue @C moves forward. Furthermore, when the hydraulic switching valve lever inside the boat is placed in the body lock N position and the manual pump inside the boat is activated, the body lock 49 that connects the body 18 of the cradle 26 and the wheeled girder trackway 2 is released. When the brake (x6) 31 of the winch 30 is released by releasing the hydraulic cylinder 48 and pulling it through the pull string (not shown) of the remote control wire 54 from inside the boat, the lock lever sO is pulled down by gravity and the cradle is released. 26 and the wheeled girder 2 are released, the lifeboat C and the cradle 26 descend together on the wheeled girder trackway 2, and when the wheeled girder 16 reaches the lowest position, the first cradle 26 When it stops, at 14:00, lifeboat C and cradle 26 are both on cradle trackway 15. , 15 to the starting position.

Furthermore, when the pull cord is operated to loosen the brake 31 of the brake-equipped winch 3G, the wire rope 36 is gradually stretched, and the lifeboat C is lowered onto the water surface W.

When the lifeboat C is lowered to the water surface W, the hydraulic switching valve inside the boat is placed in the boat hook lock N'R position, and the manual pump inside the boat (both not shown) is activated, the port hook F is unlocked. , the lower ring 41 of the floating block 34 and the boat hook F are uncoupled. Lifeboat C
Start the engine and escape from the ship S.

(17) (4) In Figures 1g11 to 1G13 of winch hoisting type recovery, turn on the main switch of the operation panel (not shown) on the rear deck p, and
When the repossession direction switching pulp lever is placed in the girder lock position, the wheeled girder is activated by the hydraulic cylinder 70.
The wheeled girder 16 is fixed to the wheeled girder trackway 2 in a state where some rollers 9 of the wheeled girder 16 reach the bottom @7 of the inclined part 3.

Next, the boat hook F and the cradle 26 on the top of the lifeboat C.
The ring 41 of the floating block 34 suspended from the tip of the floating block 34 is connected by gravity, and hydraulic pressure is applied to the hydraulic motor 29 of the winch with brake 30 to hoist the life saving IC from the water surface W. On the way, the auxiliary block 75 of the auxiliary wire rope 74 lowered from the auxiliary winch 73 via the tip sheave 76 of the cradle 26 is connected to the auxiliary boat hook F' installed at the rear of the lifeboat IIC. Hoist up lifeboat C3f while preventing rotation.

(18) When the winch 30 continues to be hoisted up and both the lifesaving IIc and the cradle 26 reach the rear end on the forward-inclined cradle trackway 15.15 of the wheeled girder 16, the limit valve L is activated and the cradle 26 is hoisted. The top is stopped, the hydraulic cylinder 48 is activated, the body lock 49 is locked, and the body 18 of the cradle 26 and the wheeled girder 1 are locked.
6 is fixed, and the girder lock 71 is locked by hydraulic operation.
@Release.

Next, when hydraulic pressure is applied to the hydraulic motor 29 of the winch 30 with a brake, the lifeguard C, the body 18, and the king of the wheeled girder 16 are moved by the winch 30 to the storage position via the wire rope 36.

When the wheeled girder 16 reaches the storage position of the wheeled girder trackway 2, the limit pulp L is activated to automatically stop the winch 30.

Next, when the recovery direction switching pulp lever is placed in the main lock position, the wheeled girder 16 is fixed to the wheeled girder (19) on the trackway 2 in the retracted state by the operation of the hydraulic cylinder 44. Further, when the recovery direction switching pulp lever is placed in the port lock position, the hydraulic cylinder 51 is operated to fix the work@C and the body 18.

Next, loosen the brake 31 of the winch with brake 3o,
The floating block 34 is slightly lowered by 1 piece,
When the port hook F and the ring 41 are placed in a position where they can be easily opened, the hydraulic switching valve lever inside the boat is placed in the floating block lock open position, and the manual pump inside the boat is activated, the floating block 34 is activated by the hydraulic cylinder. 77 to move upward, floating block 34 and life saving sI
C and I are completely friends.

(Effects of the Invention) The present invention provides a wheeled girder trackway that is installed at the stern of a ship and has a rearwardly inclined part, and that drives the wheeled girder trackway forward and backward on this wheeled girder trackway. A lifeboat is placed on the top of the wheeled girder (20), and a cradle that can be moved forward and backward is placed at the rear of the wheeled girder, and a brake is attached on the deck at the base of the wheeled girder. The wire rope of the winch is tied to the sheave of the tower installed on the deck and multiple sheaves installed in the cradle, suspended from the top of the cradle, and a floating block is attached to the lower end.
Hang the remote control wire for releasing the winch brake through the sheaves installed on each part of the tower and cradle, attach a handle to the tip, and then connect both ends of the lashing wire hooked to the auto releaser on the deck. It is attached to the boat, and the trackway for the wheeled garter and the wheeled girder are engaged and disengaged, the wheeled girder and the cradle are engaged and disengaged, the cradle and the lifeboat are engaged and disengaged, and the floating block and the lifeboat are engaged and disengaged. As the ship can be moored and uncoupled from inside the boat, free surfacing is automatically carried out in the event of an emergency sinking of the ship, allowing for free-fall launching of the lifeboat, (21) and gravity-drop launching of the lifeboat. is carried out quickly, reliably and safely, furthermore, the number of winch hoisting operations is carried out extremely safely, and the above four types of work can be carried out reliably, safely and quickly depending on the situation. It is unique.

[Brief explanation of the drawing]

Fig. 11GI is a front view of the embodiment of the present invention, Fig. 2 is a side view of the same, Figs. 1g3 and 4 are explanatory diagrams of the free floating operation according to the present invention, and Figs. Figures 1K8 to 1θ are diagrams explaining the action of water, and Figures 1K8 to 1θ are diagrams explaining the action of gravity descent type launching, and Figures 11 to 13 are diagrams explaining the action of winch hoisting type recovery. (Explanation of symbols of main parts) 1... Lifeboat release, mouth-taking device 2...
...Trackway for girder with wheels 3...
...... Slanted part 4 ... Horizontal part 5 ...... Legs 6 ...
・・・・Legs (22) 7・・・・・・・Bottom end 8・・・・・・・
...Bracket 9...Roller (front) 10
・・・・・・・・・Legs 11・1・・・・・・ Guard! 2...Girder 13...Roller (rear) 14...Downward inclined part 1
5・・・・・・・・・Trackway 1 for cradle
6...Girder with wheels-17...
・Roller 18... Self... Body, 19...
・・・・・・Axis 20・・・・・・・・・Portal frame
21・・・・・・・・・・Support 22・・・・・・・
...Top beam 23...Bottom beam 2
4・・・・・・・・・・Head 25・・・・−・
... Sheave 26 ... Own cradle 27
・・・・・・・・・・Tower 28・・・・・・・・・・
Drum 29...Motor (hydraulic) 30...
...Winch with centrifugal brake 31...
・・・・・・・・・Brake (disc type)% type% 35・・・・・・・・・Lock @ 36・・・・・・
・・Wire rope (23) 37・・・・・・・・Pole 38・・・・・
...Sheave 39...A...Sheave 40...Support (floating block) 41...Ring (floating block) block) 42...Casing 43...Sheave (floating block) 44...Hydraulic cylinder (main lock) 45.・・・・・・・・・Main lock 46・
......Lock lever (main lock) 47
・・・・・・・・・Main lock par 48・・・・・・
...Hydraulic cylinder (body lock) 49...
...Conflict/Bodylock 50...
Lock lever (body lock) 5!・・・・・・・・・
・Hydraulic cylinder (boat lock) 521...
...Port lock 53...Lock lever (port lock) 54...1...Remote control wire 55...Sheave (control wire) (for control wire) (24) 56... Sheave (for control wire) 5711... Fist... Sheave (//
) 58... Handle 59...
...... Sphere 60 ... Auto releaser 61 ... Roller 62 ... Lashing wire 63 ...
...Sheave (for control wire) 6
4・・・・・・・・・Roller (lashing wire) 65・・・・・・・・・Roller (//
)66...Guide roller 67...
...Platform 68...Ladder 6
9...-1...Pump unit 70...
...Hydraulic cylinder (girder lock) 71...
・・・・・・Girder lock 72・・・・・・・・・
・Lock lever (girder lock) 73... Auxiliary winch 74... Auxiliary wire rope 75...
...Auxiliary floating block 76...
・・・・・・Sheave (25) 77・・・・・・・・・Hydraulic cylinder (boat hook) 78・・・・・・・・・Boat hook lock 79
......Lock lever (boat hook) death...Water surface?・・・・・・・・・Boat fastener L・・・・・・
...Limit valve L...Limit pulp F...Boat hook C...Lifeboat B... ......Slide plate D'...
・・・・・・Aft slope sD・・・・・・・・・Aft deck S・・・・・・・・・ Main vessel F′・・・・・・・・・Auxiliary boat hook ( 26)

Claims (2)

[Claims] (1) A method for releasing and recovering a lifeboat, characterized in that one of the methods listed in items 0 to 0 below can be performed by operating from inside the boat. ■The water pressure caused by the sinking of the ship activates the auto releaser and releases the lashing wire! A method of escaping by floating freely on the surface of the water using the buoyancy of a lifeboat. ■A lifeboat connected to the floating block of the cradle and a lifeboat are attached to the cradle-equipped body on the cradle trackway installed on the wheeled girder to the inclined part of the wheeled girder trackway installed at the stern. With the wheeled girder locked, loosen the winch brake and move the wheeled girder by its own weight, stop it once on the slope (1) of the wheeled girder trackway, and connect it with the floating block of the cradle. A method in which the lock between the lifeboat and the body with the cradle and the lifeboat is released from inside the boat, and the lifeboat is slid down the slope of the cradle trackway by its own weight and released onto the water surface by free fall. ■Release the lock of the body with cradle of the lifeboat that is temporarily stopped on the slope of the wheeled girder trackway, and the lock between the body with cradle and the trackway for the cradle, loosen the winch brake, and release the body with cradle. A method of moving the lifeboat to the tip of the slope using its own weight, suspending it from the tip of the cradle, and escaping the lifeboat to the surface by lowering the power. The lifeboat on the surface of the water was hoisted up to the stopped cradle at the outer end of the incline, and the lifeboat and body with cradle were moved to the rear end of the wheeled girder using the winch. A recovery method in which the wheeled girder is pulled back to the storage position of the wheeled girder trackway with the lifeboat and body with cradle placed on it by continuing to wind it with S* in Daruma (2). (2) A lifeboat release/retrieval device equipped with one or more of the devices listed in items 0 to 0 below, installed on the deck of the ship. ■It has a trackway for a wheeled girder consisting of an inclined part and a horizontal part extending backwards on the rear deck of the ship, and a roller that can be moved freely on this trackway for a wheeled girder. A wheeled garter, a cradle trackway provided on the wheeled girder, and a portal-shaped cradle rotatably provided in the front and rear directions on a body that curves a roller that rolls on the cradle trackway. A winch with a brake was installed on the deck at the base of the wheeled girder trackway, and a floating block (3
), a main lock that connects and disconnects the wheeled garter and the wheeled girder trackway, a body lock that connects and disconnects the cradle body and the cradle trackway, and a main lock that connects and disconnects the wheeled garter and the wheeled girder trackway, and a body lock that connects and disconnects the cradle body and the cradle trackway. A lifeboat release/retrieval device comprising a port lock for engaging and disengaging, and a device for controlling the engagement and disengagement of each of these locks and for controlling the brake-equipped winch from inside the boat. ■A lifeboat release/retrieval device that is equipped with an auto-releaser installed on the deck that is activated by water pressure, and a lashing wire that ties down the lifeboat through the auto-releaser.